The utility model discloses a wire antivibration system. The overhead transmission wire comprises: a stockbridge damper, wherein the stockbridge damper is used to perform auxiliary antivibration on the wire; a damper line, wherein a short lace subjected to the layer stripping process and a long lace which does not subjected to the layer stripping process in the damper line are used in a cooperative manner to perform main antivibration on the wire, and the stockbridge damper is installed in the long lace on the inner side of the damper line; and an armour rod, wherein the armour rod is wounded around a clamping and fixing point, and the damper line is arranged from the short lace to the long lace from the span middle side to the span end side. The antivibration system of the utility model is used in the antivibration of a strong steel core high-strength aluminum alloy wire used in extra-high voltage direct-current long span to solve the problem that the dynamic bending strain exceeds an allowed standard value in large span length, large wire cross section and large wire stress conditions, prevent the wire fatigue breaking caused by aeolian vibration, and ensure the line safe and stable operation.